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		Arsa, I., 		Setiyo, Y., & 		Nada, I.
2013 Feb  1.  Kajian Relevansi Sifat Piskokimia Tanah pada Kualitas dan Produktivitas Kentang (Solanum Tuberosum L). Jurnal BETA (Biosistem dan Teknik Pertanian). [Online] 1:1